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AQA BIOL2~3rd June 2013~AS Biology (Now Closed)

Reply 2940

annaelizabet

6

http://filestore.aqa.org.uk/subjects/AQA-BIOL2-W-QP-JAN11.PDF QUESTION 3BII? PLEASE HELP ME :frown:

Reply 2941

lorobolorolo

7

Original post by annaelizabet

http://filestore.aqa.org.uk/subjects/AQA-BIOL2-W-QP-JAN11.PDF

3bii

Each square represents 1 million years ago. And then if u go along the line of D. melanogaster and along the line of D. pseudoobscura, you can see that they meet at 26 million years.
Is that the right answer? Hope my explanation made sense to u.

Reply 2942

Angelica.

Original post by annaelizabet

http://filestore.aqa.org.uk/subjects/AQA-BIOL2-W-QP-JAN11.PDF

question 3bii?

It is 26 million as this is where both the lines leading to melanogaster and pseudoobscura last meet :smile:

Reply 2943

dooobie_

As long as you've stuck to the spec you'll all be fine, don't go too in depth! It's wasting time and it may not even be a marking point! My friend sat this last year and he read in to every single topic in amazing detail every night because he loved it so much and came out with a C on his first time as he learned too much info and put the wrong stuff down in a short space of time. Whatever is in your text book or exercise book will be a marking point, remember that :smile:

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Reply 2944

aloha_

10

Just to clarify, crossing over happens in prophase 1 yes? :smile:

Reply 2945

Simran Mars Foster

12

To think those papers are just sitting there waiting for us...

Reply 2946

anonymousecheese

2

Original post by annaelizabet

http://filestore.aqa.org.uk/subjects/AQA-BIOL2-W-QP-JAN11.PDF

question 3bii?

okay (this is actually fun- a bit of a maze game)
1) get out your highlighter and start drawing over the line going away from the: D. melanogaster (remember you want to get as far away as you can)- you should end up at the other side of the graph
2) do the same for D. pseudoobscura
3) circle the bit where the 2 lines meet
4) see what year your at by following the line up= 26million years

tada :biggrin:

Reply 2947

Linked

6

Can anyone please explain to me why you have to cut the shoot at a slant in the potometer experiment?

Reply 2948

senz72

19

Don't worry guys!

I'll single handedly lower the grade boundaries with a poor performance tomorrow.

I literally know nothing...

Reply 2949

2013leaver

5

can anyone link me to the Jan 2013 paper?

Reply 2950

annaelizabet

6

Original post by lorobolorolo

Each square represents 1 million years ago. And then if u go along the line of D. melanogaster and along the line of D. pseudoobscura, you can see that they meet at 26 million years.
Is that the right answer? Hope my explanation made sense to u.

Thanks!!

. http://filestore.aqa.org.uk/subjects/AQA-BIOL2-QP-JAN12.PDF

3aii?

Reply 2951

LiamDaly

Original post by LiamDaly

Possible plant questions?

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I ask with my life: what are the possible plant questions and how would you approach them?

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Reply 2952

username951826

15

im feeling a lot more confident now after having spent a day on past paper QS

Reply 2953

anonymousecheese

2

what is the difference between the casparian strip and the endodermis :cry:

Reply 2954

annaelizabet

6

Original post by Angelica.

It is 26 million as this is where both the lines leading to melanogaster and pseudoobscura last meet :smile:

Thanks!!!, http://filestore.aqa.org.uk/subjects/AQA-BIOL2-QP-JAN12.PDF question 3aii? :smile:

Reply 2955

lorobolorolo

7

Original post by dooobie_

As long as you've stuck to the spec you'll all be fine, don't go too in depth! It's wasting time and it may not even be a marking point! My friend sat this last year and he read in to every single topic in amazing detail every night because he loved it so much and came out with a C on his first time as he learned too much info and put the wrong stuff down in a short space of time. Whatever is in your text book or exercise book will be a marking point, remember that :smile:

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